287981200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{55381}}^1$

素因数の和:55412

約数の個数: 60

約数和(自身を含む): 745109428

約数和(自身を除く): 457128228

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 55381, 110762, 221524, 276905, 443048, 553810, 719953, 886096, 1107620, 1384525, 1439906, 2215240, 2769050, 2879812, 3599765, 4430480, 5538100, 5759624, 7199530, 11076200, 11519248, 14399060, 17998825, 22152400, 28798120, 35997650, 57596240, 71995300, 143990600, 287981200]

約数ペア:

[(1, 287981200), (2, 143990600), (4, 71995300), (5, 57596240), (8, 35997650), (10, 28798120), (13, 22152400), (16, 17998825), (20, 14399060), (25, 11519248), (26, 11076200), (40, 7199530), (50, 5759624), (52, 5538100), (65, 4430480), (80, 3599765), (100, 2879812), (104, 2769050), (130, 2215240), (200, 1439906), (208, 1384525), (260, 1107620), (325, 886096), (400, 719953), (520, 553810), (650, 443048), (1040, 276905), (1300, 221524), (2600, 110762), (5200, 55381)]